SELECT 
  cscart_product_prices.product_id, 
  MIN(
    IF(
      cscart_product_prices.percentage_discount = 0, 
      cscart_product_prices.price, 
      cscart_product_prices.price - (
        cscart_product_prices.price * cscart_product_prices.percentage_discount
      )/ 100
    )
  ) AS price 
FROM 
  cscart_product_prices 
WHERE 
  cscart_product_prices.product_id IN (
    125768, 125767, 125766, 125765, 125764, 
    125763, 125762, 125761, 125760, 125759, 
    125758, 125757, 125756, 125755, 125754, 
    125753, 125752, 125751, 125750, 125749, 
    125748, 125747, 125746, 125745, 125744
  ) 
  AND cscart_product_prices.lower_limit = 1 
  AND cscart_product_prices.usergroup_id IN (0, 1) 
GROUP BY 
  cscart_product_prices.product_id